
.login{
  width: 100%;
  height: calc(100% - 45px);
  position: relative;
  .dongtu{
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 1;

    img:nth-child(1){
      width: 600px;
      height: 600px;
      position: absolute;
      top: 12%;
      left: 16%;
    }
    img:nth-child(2){
      position: absolute;
      width: 250px;
      height: 250px;
      top: 0;
      left: 0;
      overflow: hidden;
      transform: rotateZ(180deg);
      z-index: 5;
    }
    img:nth-child(3){
      position: absolute;
      width: 250px;
      height: 250px;
      top: 0;
      right: 0;
      overflow: hidden;
      transform: rotateZ(270deg);
      z-index: 5;
    }
    img:nth-child(4){
      position: absolute;
      width: 250px;
      height: 250px;
      bottom: 0;
      left: 0;
      overflow: hidden;
      transform: rotateZ(90deg);
      z-index: 5;
    }
    img:nth-child(5){
      position: absolute;
      width: 250px;
      height: 250px;
      bottom: 0;
      right: 0;
      overflow: hidden;
      z-index: 5;
    }
  }
  .form-box{
    position: absolute;
    top: 45%;
    right: 15%;
    z-index: 999;
  }
}